1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2017 05 31 Released G. Kowalski, NA Controlled document at www.MATS Copyright 2017 Ford Global Technologies, LLC Page 1 of 9 POLYPROPYLENE (PP) COPOLYMER COOLING AGENT WSS-M4D741-B2 RESISTANT MOLDING COMPOUND 1. SCOPE The material defi
2、ned by this specification is a thermoplastic injection molding compound based on polypropylene copolymer. This material is resistant to engine coolant. 2. APPLICATION This specification was released originally for material used for overflow/degas bottles. 2.1 LIMITATIONS This material has low impact
3、 resistance at low temperatures. The material undergoes creep at elevated temperatures. Load limiters are required for fasteners and inserts may be necessary on outlets where clamping is required. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification is part of the Ford Co-Managed Buy (CMB) agreem
4、ent. Tier 1 Molders who are participating under the CMB agreement must use one the following approved sources (deviations require approval from Raw Materials Purchasing and Materials Engineering): Specification North American Programs European Programs WSS-M4D741-B21 Lyondell Basell / Equistar Hosta
5、len PP HP1886 TBD Molders not on the CMB program or regions without CMB are required to use materials listed on the Ford Approved Source List (ASL), and are encouraged to use the CMB sources listed above. Only the sources identified on the Approved Source List can be used when this specification is
6、listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017, Ford Global Technologies, LLC Page 2 of 9 3.2 CONDITIONING AND TEST
7、 CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 INFRARED SPECTROPHOTOMETRY
8、AND/OR THERMAL ANALYSIS IR spectra and thermograms from initial material approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. The material supplier shall ensure that all future material supplied to the specification shall produce IR spectr
9、a and thermograms that correspond to the reference standard when tested under the same conditions. 3.4 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS 3.4.1 Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma v
10、alues were to be reported. The specification minimum, maximum or range was established using 3 sigma data. For 2011 and beyond, refer to Table 1 for number of samples required for each test. 3.4.2 This specification is based on virgin material and does not allow the addition of recycled content (PIR
11、/PCR). 3.4.3 The use of regrind is permitted, for economic / environmental reasons. Part manufacturers using this specification must complete DV and PV testing with the allowable amount of regrind and the maximum allowable regrind content must be specified on the engineering drawing. Any changes to
12、what is specified on the drawing (no specific amount implies zero regrind) must be approved by Materials and PD Engineering through the formal Ford Motor Company process (SREA) or Engineering Notice. 3.4.4 Material must be processed per Global Manufacturing Standard W-IMMS - Control of Plastic Injec
13、tion Molding Processes, located on the Ford Supplier Portal, STA Global Technical Services, Plastic Molding, https:/ 3.4.5 Materials requiring High Strain Rate, Creep or fiber oriented Tensile Modulus may be required to test to the requirements of WSS-M99D68-A1/Latest, Thermoplastic Property Determi
14、nation For CAE, High Strain Rate Tensile, Creep and Tensile Modulus. Material Suppliers should be prepared to submit data upon request. 3.4.6 Performance Criteria: Parts using this specification shall meet the appropriate performance specifications, WSS- M15P50-B/Latest. 3.4.7 Ford Materials Enginee
15、ring may request a Control Plan and Certificate of Analysis (C of A) containing lot testing requirements which must include, but are not limited to: Melt Flow Rate Filler Content Impact Strength, Notched Charpy at 23C Flexural Modulus ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017,
16、Ford Global Technologies, LLC Page 3 of 9 3.5 SAMPLE PREPARATION All tests shall be carried out on production materials manufactured from the production process unless correlation to a non-production process has been reviewed and approved by Ford Materials Engineering. Unless otherwise specified all
17、 tests shall be carried out on injection molded, one-end gated test specimens. The test specimens A and D shall be molded using molding conditions defined in iso 1873-2. No annealing is allowed See Table 1 for the number of samples required. Specimens shall be as follows: Specimen A 150 minimum x 10
18、 x 4.0 +/- 0.2 mm (ISO 527-2, Specimen Type 1A) Specimen B 355 x 100 x 1.0 +/- 0.1 mm Specimen C 145 x 60 x 3.2 +/- 0.2 mm Specimen D 80 x 10 x 4.0 +/- 0.2 mm (may be cut from the center of Specimen A) Specimen E 100 mm diameter x 3.2 mm Specimen F 80 mm diameter x 3.2 mm Specimen G 90 mm x 200 mm S
19、pecimen H 50 +/- 1 mm diameter x 3.2 +/- 0.2 mm Specimen I 100 mm x 150 mm, min 3.6 MATERIAL PROPERTIES 3.6.1 Melt Flow Rate 1.1-1.6 g/10 minutes (ISO 1133 230 C, 2.16 kg) 3.6.2 Density 0.876-0.924 g/cm3 (ISO 1183, Method A) 3.6.3 Tensile Strength at Yield 32 MPa min (ISO 527-1 and ISO 527-2, Specim
20、en A, 50 mm/minute test speed) 3.6.4 Elongation at Yield 10 % min (ISO 527-1 and ISO 527-2, Specimen A, 50 mm/minute test speed) 3.6.5 Tensile Modulus 1.12 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.6.6 Flexural Modulus 1.22 GPa min (ISO 178, Specimen D, 64 mm support sp
21、an, 2 mm/minute test speed) 3.6.7 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.6.7.1 At 23 +/- 2 C 4.8 kJ/m2 min Report Break Type 3.6.7.2 At -40 +/- 2 C 1 kJ/m2 min Report Break Type ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017, Ford Global Technologies, LLC Page
22、 4 of 9 The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. Test specimens must be reviewed by Materi
23、als Engineering. 3.6.8 Heat Deflection Temperature 50 C min (ISO 75-1 and ISO 75-2, Specimen D, flatwise, Bath silicone oil, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.6.9 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 135+/- 2 C. After heat aging test specimens are to be condi
24、tioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.6.9.1 Tensile Strength at Yield, Change - 15% max (Test Method per para 3.7.3) 3.6.9.2 Impact Strength, Notched Charpy, Change - 25% max (Test Method per p
25、ara 3.7.7.1, specimens to be notched before Heat Aging) 3.6.9.3 Color Stability, CIElab 6.0 delta E max (SAE J1545, Instrument capable of Measuring CIElab color space, Illuminant D65, 10o Standard Observer, 150 min x 10 x 4.0 +/- 0.2 mm) Note: Degas bottle material cannot be stained such that cooant
26、 level would not be visible. 3.6.10 Resistance to Coolant and Water (50/50) (FLTM BO 130-01, 1000 h at 125 +/- 2oC, 10 test specimens minimum, engine coolant as Defined by the materials Engineer. Unaged property values shall be determined At the time of the aged properties determination, engine cool
27、ant: WSS-M97B44-D). 3.6.10.1 Tensile Strength at Yield, Change - 15% max (Test Method per para 3.6.3) 3.6.10.2 Impact Strength, Notched Charpy, Change - 15% max (Test Method per para 3.6.7.1, specimens to be notched before Heat Aging) ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017,
28、Ford Global Technologies, LLC Page 5 of 9 3.6.10.3 Color Stability, CIElab 21 delta E max (SAE J1545, Instrument capable of Measuring CIElab color space, Illuminant D65, 10o Standard Observer, 150 min x 10 x 4.0 +/- 0.2 mm) Note: Degas bottle material cannot be stained such that cooant level would n
29、ot be visible. 3.6.11 Staining Potential of Deposits from Coolant/Hose Interaction (FLTM BP 108-09, 500 h at lowest possible reflus. Engine coolant(s) and inner liner hose samples(s) as defined by Fard materials Engineer, engine coolant: WSS-M97B44-D). 3.6.11.1 Color Stability, CIElab 21 delta E max
30、 (SAE J1545, Instrument capable of Measuring CIElab color space, Illuminant D65, 10o Standard Observer, 150 min x 10 x 4.0 +/- 0.2 mm) Note: Degas bottle material cannot be stained such that cooant level would not be visible. 3.6.12 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn R
31、ate 100 mm/minute max 3.7 MATERIAL PROPERTIES REPORT ONLY Values are retained in Ford Materials Database . 3.7.1 Molding Shrinkage (Report method used, sample size and value) After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Report Value, % Note: Shrinkage vales are determined on plaque sampl
32、es and represent approximate values, part shrinkage can be affected by molding conditions, part thickness and geometry. 3.7.2 Coefficient of Linear Thermal Expansion (ISO 11359-2, -30 +/- 2 C to 110 +/- 2 C) Flow Report Value, E-5 mm/mm/ C Cross Flow Report Value, E-5 mm/mm/ C 3.7.3 Heat Deflection
33、Temperature Reoport Value, C (ISO 75-1 and ISO 75-2, Specimen D, flatwise, Bath silicone oil, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 3.7.4 Melt Temperature Report Value, C (ISO 11357, 10 C/min heating rate) ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017, Ford Global Technologies,
34、LLC Page 6 of 9 3.7.5 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.7.6 Tensile Creep Modulus (ISO 899-1, 1000 hours, 130oCSpecimen A, Transverse specimens per ISO 527-2) At 4.0 MPa Report Value, MPa At 3.0 MPa Report Value, MPa Provide data creep plots
35、(% Strain vs. Time in hours), individual data points at each stress level and Isochronous Stress-Strain Plot 3.7.7 Supplemental Information All new source approvals (new sites exempted) must have the latest version of the FMD template completed (all red text) and submitted as part of the approval pa
36、ckage. The FMD data must also include an Excel table of stress vs strain at -40C, 23C and a high temperature (recommended to use heat aging temperature) The following curves are to be submitted with the FMD data packages: FTIR TGA DSC first and second heat Engineering Stress/Strain at -40C, 23C and
37、high temperature CLTE (Optional) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2
38、Copyright 2017, Ford Global Technologies, LLC Page 7 of 9 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.8 Para. Test Typical Value Units 3.7.1 Molding Shrinkage (Report method used, sample size and value) - After 48 h at 23 +/- 2 C Flow Cross Flow 2.1 1.5 % % 3.7.2 Coefficient of Linear Thermal
39、Expansion Flow Cross Flow 13.21 11.29 E-5 mm/mm/ C E-5 mm/mm/ C 3.7.3 Heat Deflection Temperature 100 oC 3.7.4 Melt Temperature 153 C 3.7.5 Poissons Ratio 0.38 N/A 3.7.6 Tensile Creep Modulus At 4.0 MPa At 3.0 MPa 80 107 MPa 4.2 GENERIC IDENTIFICATION AND MARKING OF PLASTIC PRODUCTS PP (ISO 1043/114
40、69/18064) ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017, Ford Global Technologies, LLC Page 8 of 9 Table 1: Minimum Sample Size Initial Approval and/or Initial Approval in a New Region Additional Manufacturing Location for Previously Approved Material Para. Test Minimum Lots Specim
41、ens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.4.6 WSS-M15P50-B Reference the Performance Specification 3.6.1 Melt Flow Rate* 3 1 3 3 1 3 3.6.2 Density 1 3 3 1 3 3 3.6.3 Tensile Strength at Yield* 3 5 15 1 5 5 3.6.4 Elongation at Yield* 3 5 15 1 5 5 3.6.5 Tensile Modu
42、lus 1 10 10 3.6.6 Flexural Modulus* 3 10 30 1 10 10 3.6.7 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.6.8 Heat Deflection Temperature (per condition)* 3 2 6 1 2 2 3.6.9 Heat Aging Performance 3.6.9.1 Tensile Strength at Yield, Change 1 5 5 3.6.9.2 Impact Strength, Notched Charp
43、y, Change 1 10 10 3.6.9.3 Color Stability, CIElab 1 1 1 3.6.10 Resistance to coolant and Water 3.6.10.1 Tensile Strength at Yield, Change 1 5 5 3.6.10.2 Impact Strength, Notched Charpy, Change 1 10 10 3.6.10.3 Color Stability, CIElab 1 1 1 3.6.11 Staining potential of deposits from Coolant/Hose inte
44、raction 3.6.11.1 Color Stability, CIElab 1 1 1 3.6.12 Flammability 1 5 5 3.7.1 Mold Shrinkage 1 5 5 1 5 5 3.7.2 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.7.3 Heat Deflection Temperature (per condition)* 3 2 6 1 2 2 3.7.4 Melt Temperature 3 1 3 3.7.5 Poissons Ratio 1 2 2 1 2 2 3
45、.7.6 Determination of Creep Behavior 1 hour 1000 hours 1 1 2 3 2 3 3.7.7 Curves - IR - TGA - DSC (first and second heat) - CLTE (3 flow and 3 cross flow) - Stress/Strain Curves (23C, -40C, and elevated temp.) 1 1 1 per test * For these requirements the 3 sigma value from the raw data is used to meet
46、 the requirements. ENGINEERING MATERIAL SPECIFICATION WSS-M4D741-B2 Copyright 2017, Ford Global Technologies, LLC Page 9 of 9 4.3 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Mate
47、rials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representativeof the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available fo
48、r review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.4 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent
49、 in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the propose
